Glow Plug Controller for 2000-2003 GM 6.6L Duramax LB7 is a genuine Delphi part # HDC911. higher quality replacement for your failed, factory unit. Built with better internal components and better insulation. Many often overlook the importance of these controllers and tend to replace the glow plugs only after failure. Sometimes it is a damaged controller that is the root cause of frequent glow plug failure.
-Delphi part # HDC911